Art Deco 1.80 Old Cushion Cut Center Diamond Emeralds Platinum Engagement Ring. This is a stunning art deco style engagement ring set with a sparkley 1.80 old mine cushion cut diamond, 14 emeralds and 36 additional round diamonds set in platinum. The quality of this ring is superb. The center diamond is a very saught after old mine cushion cut diamond 1.80 carats I color VS-2 clarity. The additional diamonds have a total weight of .90 carats. The emeralds are natural gem quality caliber cut. The ring is in excellent condition, Weight 5.4 grams, Ring Size 7, Face of the ring measures 15mm wide, diamond measures 8mm by 7mm.